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GB File - What is a .gb file and how do I open it?
Learn about .GB files and view a list of programs that open them.
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Overview
What is a GB file? A GB file is a ROM image of a Nintendo Game Boy video game. It stores the complete data of a Game Boy game dumped from a game cartridge. Gamers load GB files in a Game Boy emulation program on a computer to play games without the Game Boy console.
More Information GB file open in VisualBoyAdvance 2 Gaming enthusiasts utilize emulation software to play games on their computers without the gaming console that initially played them. For example, gamers who want to relive the games they played on Game Boy in the 1980s - 90s use emulation software, such as VisualBoyAdvance, KiGB, and BGB, to emulate Game Boy game ROMs. To get game data stored in game cartridges into a playable format, gamers dump game data from the cartridges with special hardware and software, then save the data in the GB format on their computer. They may then upload the files to share with others who can then download the GB files to play them on their computer with an emulator.
VisualBoyAdvance 1 Icon
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DeveloperAbdur-rahmaan Janhangee
Popularity2.0 | 1 Vote
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In-Depth
.GB File Extension
3 file types use the .gb file extension.
Game Boy ROM File
| Developer | N/A |
| Popularity |
4.2 | 38 Votes |
What is a GB file?
A GB file is a ROM image of a Nintendo Game Boy video game. It stores the complete data of a Game Boy game dumped from a game cartridge. Gamers load GB files in a Game Boy emulation program on a computer to play games without the Game Boy console.
More Information
GB file open in VisualBoyAdvance 2
Gaming enthusiasts utilize emulation software to play games on their computers without the gaming console that initially played them. For example, gamers who want to relive the games they played on Game Boy in the 1980s - 90s use emulation software, such as VisualBoyAdvance, KiGB, and BGB, to emulate Game Boy game ROMs.
To get game data stored in game cartridges into a playable format, gamers dump game data from the cartridges with special hardware and software, then save the data in the GB format on their computer. They may then upload the files to share with others who can then download the GB files to play them on their computer with an emulator.
How to open a GB file
You can open a GB file with various Game Boy emulators, including VisualBoyAdvance , BGB, RetroArch, and KiGB. For example, to open a GB file with VisualBoyAdvance, select File → Open GB...
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Programs that open GB files
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Program Name
Platform
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Windows
VisualBoyAdvance
Free
BGB
Free
TGB Dual
Free
KiGB
Free
RetroArch
Free
Mac
VisualBoyAdvance
Free
RetroArch
Free
Linux
RetroArch
Free
Category: Game Files
Updated: July 7, 2022
GenBank Data File
| Developer | NCBI |
| Popularity |
3.9 | 14 Votes |
Scientific data format used to store DNA sequences and allow users to closely examine the genome information; often contains a single sequence but may contain multiple sequences.
More Information
To create a GB file using Genome Compiler, select "New Project" by clicking the document icon with the "+" symbol. Then, select "Export" by clicking the arrow symbol on the icon with two floppy disks. Finally, select "Export as GenBank", name the file, choose the save location, and click Save .
NOTE: The GenBank format was developed by the U.S. National Center for Biotechnology Information (NCBI). GenBank Sequence files commonly appear with the .GBK extension.
Programs that open GB files
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Heracle BioSoft DNA Baser
Free Trial
Genome Compiler
—
Discontinued
Free Trial
Mac
Genome Compiler
—
Discontinued
Free Trial
Web
Genome Compiler
—
Discontinued
Free Trial
Category: Data Files
Updated: February 2, 2016
GreenBerry Source Code
| Developer | Abdur-rahmaan Janhangee |
| Popularity |
2.0 | 1 Vote |
A GB file may also be a source code file used by GreenBerry, a lightweight, one-line statement language created by Abdur-rahmaan Janhangeer. GreenBerry is designed as an in-shell utility for Python , allowing users to write short commands or scripts that interact with Python simply and directly. GB files store these commands in plain text, which users can reuse or share.
More Information
GB file open in Microsoft Visual Studio Code 1.1
GB files typically contain concise instructions written in the GreenBerry syntax . The language emphasizes executing tasks quickly with minimal code, making it useful for scripting, automation, and experimenting with Python operations. Developers, students, and users who work with Python may use GB files to simplify repetitive tasks or test small pieces of logic without writing full Python scripts.
How to open a GB file
You can open GB files with any text editor or source code editor, such as Microsoft Notepad , Apple TextEdit , or Microsoft Visual Studio Code . You can use the text editor or source code editor to view or edit its contents.
To run the file, you need a compatible environment that supports GreenBerry, usually within a Python setup where the GreenBerry tool is installed. Because the format is text-based, you can easily modify the file, but you must use the correct syntax for it to execute properly.
Programs that open GB files
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Microsoft Visual Studio Code
Free
Any text editor
Windows
Microsoft Notepad
Included with OS
Mac
Apple TextEdit
Included with OS
Linux
gedit
Free
Category: Developer Files
Updated: March 23, 2026